British Railways and British Rail
English: British Railways (BR) was the nationalised state railway system in Great Britain from 1948 to the mid-1990s. It was formed from the amalgamation of the 'Big Four' British railway companies (GWR, LNER, LNWR & SR) in 1948. In 1965 it adopted the shortened brand name British Rail. In the 1980s BR began to operate under sub-brands called sectors, and it was broken up and privatised in stages between 1994 and 1997.